Ivan Paul

Astronomers using the James Webb Space Telescope have separated the light of a quasar from the light of its surrounding stars, offering unprecedented insight into how the universe's oldest black holes grew.

When a satellite runs out of fuel, it becomes little more than space junk. Now, space agencies and private companies want to change that. Here's how scientists plan to refuel satellites — in orbit.

Scientists have proposed a new technique to help researchers identify oceans on exoplanets — a key step to finding life outside our planet.

Researchers hope their proposal of declaring a new geological era on the moon — the Lunar Anthropocene — will encourage discussion around human impact and help preserve important cultural artifacts such as footprints and rover tracks.